Liquid-meter.



No. 693,032. Patented Feb. ll, I902.

W. G. KENT.

LIQUID METER.

(Application filed Aug. 5, 1901.) (No Model.) 2 Sheeis$haet l.

WITNESS: I INVEA/TUI? I ATTORI VE YS.

No. 693,032. Patented Feb. ll, I902.

W. G. KENT.

LIQUID METER.

(Application filed Aug. 5, 1901.)

2 Sheets$heet 2.

.(No ModeI.)

FIQX).

WITNESSES" J A TTORNE Y3 UNITED STATES PATENT OFFICE.

\VAL'IER GEORGE KENT, OF LONDON, ENGLAND.

LIQUID-METER.

SPECIFICATION forming part of Letters Patent No. 693,032, dated February11, 1902.

Application filed August 5, 1901. Serial No. 70,953- (No model.)

To all whom it may concern.-

- Beit known that I, WALTER GEORGE KENT, a subject of the King of GreatBritain and Ireland, residing at London, England, have invented anImprovement in Liquid-Meters, (for which I have vmade application forLetters Patent in Great Britain under N0. 5,99% bearing date March 21,1901,) of which the following is a specification. 1

This invention relates to apparatus for measuring and registering thequantity of liquid passing therethrough, and has for its object theprovision'of an appliance which shall be more accurate than is usual inits measurement at verydiverse velocities, which shall work silentlywithout shock, which shall remain water-tight under wear by reason of aself-surfacing distributing-valve, and which shall permit the removal ofthe principal working parts and the port-faces by the breaking of asingle cover-joint, thus providing easy access for repair or replacementof worn parts without disturbance of connections to the pipes of exitand entry.

In order that my invention may be the better understood, I proceed todescribe it with reference to the drawings hereto annexed and to theletters marked thereon.

Figure 1 is a transverse vertical section of my meter. Fig. 2 is a planof the same with top cover and all working parts removed. Fig. 3 is avertical section at right angles to that of Fig. 1 through one of thecylinder: linings on the line 00 m. Fig. 4 is a vertical section atright angles to that of Fig. 1 through the line y 3 showing internalports and counting-gear. Fig. 5 is a longitudinal section through theannular valve, and Fig. 6 is a transverse section through same.

I provide in my appliance four cylinders A A, arranged in two pairs,which are conveniently fitted with internal liners a a, leaving theextreme upper and lower ends of the cylinders in communication, throughchambers B B of large capacity, with short ports I) 1), two, I) 1),Figs. 1 and 2, issuing on a lower port-face c','and the other two, I)12, Figs. 1 and 4, on an upper port-face 0, formed in an upper cover D.This upper cover D contains the upper cylinders, an upper portface forthe said ports of such cylinders, and

the counting mechanism E, the whole of which may be removed by breakingone joint at d. The port-faces c o are connected by a portblock F,through the center of which runs the crank-shaft- G, and in the body ofwhich the ports b b b b are brought to a vertical valve-face inarrow-head or crescent ports f f, arranged symmetrically about thecenter of the port-block. Thesaid port-block is held in place only bythe upper coverD and a dowel-pin p. In the cylinders are fitted pistonsH, connected in pairs by connectingwebs it, having in each of theircenters a horizontal slot K, forming with the crank-pins g and,revolving sleeveg thereon what are termed dog-cranks. The crank-pins gare at right angles to one another, so that one" pair of pistons are athalf-stroke'with full flow while the others are at dead-center.

The above dog-crank arrangement has advantages as a connection betweenrecipro eating pistons and a crank in a piston-meter, inasmuch as itconveniently admits of a recess K being provided in the center of eachtransverse slot K, by which the pistons are allowed a certain play orwaste motion in the said slot at the end of their stroke to compensatefor the partial cushioning of the liquid on its discharge at the end ofthe stroke, caused by the gradual closing of the exit-ports, and thisenables this meter to work without straining the pistons andcranks andwithout shock. T l

Upon the vertical port-face of the portblocks F works an annular valveL, (seen in longitudinal section inFig. 5 and in transverse section inFig.'6,) which has an annular recess or pocket Z concentric with thevalve on that face toward the ports. The valve receives a rotarytranslating movement from an eccentric-tumbler M, keyed to thecrank-shaft G, which latter passes through the annular valve andport-face. By reason of the symmetrical and concentric annular form ofthe valve L and its recess Z its control of the ports over which itmakes its rotary translating movement is not interfered with by anyangular or rotary movement of the annular valve L relatively to itsinternal eccentric tumbler M. The valve, therefore, is left free torotate or angular-1y move about the periphery of the eccentric-tumbler Mas it may think fit, and it is therefore constantly altering theposition of its wearing-faceto that of the portbloek F on which itworks, and thus perfect regularity of wear and water-tightness areinsured.

In Figs. 4 and 5 the arrow-head or crescent shaped ports f on the faceof the port-block F are clearly seen, one communicating with the outerends of each of the cylinders A, respectively. There is also a centralannular portf',which is alwaysin communication with the annular recessor pocket Z of the valve L. The driving-liquid pressure enters by theexternal pipe N and passes through a strainer '11 to the centralchambers P P, in which the cranks rotate. The driving liquid is thussituated on top of the annular valve L, and such port f as is exposedbeyond the rim of the annular valve (see Fig. 5) receives the liquidsupply and conducts same to its respective cylinder. The other portf atthe opposite part of the port-face is in communication by the annularpocket Z of the valve L with the central annular port f, and the liquidfrom that cylinder is discharging to the exit-pipe Q. The ports fareuncovered successively and are successively in communication with thecentral discharge-port f. The meter thus constantly operates under aliquid-pressure supply and discharges the same through the cylinders tothe exit-pipe Q. The number of rotations of the crank-shaft G arerecorded by a worm and worm-Wheel R, transmitted by the vertical shaftand crank-finger to any suitable counting and recording train E.

, It will be observed as an essential result of my mode of constructionthat when the upper cover D is removed by the breaking of the singlejoint d not only are all the working parts exposed to view, but theport-block F, held only by a dowel-pin p in thelower port-face, thevalve L, the crank-shaft G, and the pistons l-I may be all lifted outfor examination, repair, or renewal, leaving the lower port-face e andshort ports I) therein open to view for cleansing, if necessary, as wellas the port-face c and ports I) in the upper cover removed, and this maybe done without disturbance to the lower casting or to the entry andexit pipes connected thereto.

Having'now described my invention, what I claim, and desire to protectby Letters Patout, is

l. A liquid-meter consisting of, in combination, reciprocating pistonsin cylinders; a single joint dividing cylinders at a port-face; acentral removable port-block uniting cylinder-ports'to a single valveport-face; a Valve fitted to operate over said valve-face; a pipe entryand exit to port-block situated in lower part of casting; and valve andpiston driving connections passing through and connected with saidport-block, adapted so as to allow all working parts and port-block tobe removed, upon disconnecting the parts at the said singledivlding-joint.

.2. In a liquid-meter, in combination, four reciprocating pistons pairedin couples; four cylinders in pairs, each pair adapted to receive oneofthe said paired pistons,placed parallel to one another; a two-throwcrank-shaft, at right-angles,connectingsueh paired pistons, having abearing in a removable and central port-block, a valve thereon; and asingle dividing-joint between upper'and lower parts ofcylinder-castings, situated so as to enable all working parts and saidport-block and valve to be removed upon disconnecting the parts at saidsingle joint.

3. In a liquid-meter, in combination, aremovable port-block adapted tounite the ports of multiple cylinders with one port-face; a crank-shaftpassing centrally through said port-block and having a bearing therein;an eccentric keyed upon said central shaft; an annular valve, having anannular pocket or recess therein toward port-face, and fitted to movefreely about the periphery of the said eccentric; a dowel-pin adjustmentto said port-block on port-face; and a jointed cover holding saidport-block and shaf t-bearin g in place when bolted up.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

WALTER GEORGE KENT.

Witnesses:

RICHARD A. HOFFMANN, CHARLES CARTER.

